#1 _ 1-55 COMPRESSOR SECTION 2011 TOTALINE ...

Compressors, Chillers & CondensersCARLYLE SEMI-HERMETIC COMPRESSORS/ACCESSORIESSUCTION CUTOFF UNLOADING VS HOT GAS BYPASS UNLOADINGSuction CutoffUnloading HeadHot BypassUnloading HeadSuction cutoff unloading is a moreefficient unloading method for the06D/06E compressors. There aresubstantial energy savings and improvedcompressor reliability whena hot gas bypass unloading systemis replaced with suction cutoffunloading.Since 1981 many of the Commercial Products Carrier produced with 06E compressors utilized “Suction CutoffUnloading” in place of Hot Gas Bypass Unloading. It is easy to identify a suction cutoff unloading compressor from a hotgas bypass unloading compressor. This can be done in one of two ways:#1) The Finished Goods (new) compressor model number is different than the hot gas bypass model number.#2) The unloading heads themselves physically look different.The parts used in Hot Gas Bypass are different from those used in Suction Cutoff Unloading. These differences are:CENTER CYLINDER HEAD 06EA502074 STANDARD HEAD 06E502084 REVERSED HEADSUCTION CUTOFF06E 2 275 660HOT GAS BYPASS06E B 275 660Compressors,Chillers, CondensersMotorsElectricalHeatingComponentsIndoor AirQualityCOMPRESSORFAMILY2 one electric unloader3 two electric unloaders4 one pressure unloader5 two pressure unloaders6 one electric unloader7 two electric unloaders8 one pressure unloader9 two pressure unloadersCOMPRESSORSIZEVOLTAGEReversed Center Head(6 cylinder)HOT GAS BYPASS PART NO SUCTION CUTOFF PART NO CENTER CYLINDER HEAD DESCRIPTION06EA660105 -- 06EA680137 Valve Plate Package06EA503314 -- 06EA503334 (stnd) Cylinder Head Gasket-- 06EA660137 06EA660137 Valve Plate Package-- 06EA503334 06EA503314 (rev) Cylinder Head Gasket-- 06EA503524 -- Cylinder HeadThe valve plate gasket for both Hot Gas Bypass and Suction Cutoff is 06EA504884.Both hot gas bypass and suction cutoff use the same Control Valve Packages:Pressure Control Valve P/N 06EA660100Electric Control Valve P/N 06EA660135These control valves are similar to those you used in the past except that the bypass piston isnow separate from the valve and the pressure control valve has had internal modifications thatallow it to operate on suction cutoff applicationsB-72COMPRESSORFAMILYBCDEJKLNone electric unloadertwo electric unloadersone pressure unloadertwo pressure unloadersone electric unloadertwo electric unloadersone pressure unloadertwo pressure unloadersCOMPRESSORSIZEVOLTAGEReversed Center Head(6 cylinder)ThermostatsOils &ChemicalsAccessories, Supplies& CommoditiesTools &InstrumentsRefrigeration